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5 May 2010
The Attabad landslide: well, that’s me told then!
The Pamir Times is running an interesting story today that clearly puts me in my place! Here it is: “Hunza River lake would not burst, David Petley’s report is wrong”: Asad Zamin, DC GilgitPosted on May 5, 2010 by Pamir Times PT Report Gilgit, May 4: The report prepared by Dr. David Petley is wrong and the lake formed on Hunza River is not going to burst. Government experts have …
The Attabad landslide: well, that's me told then!
The Pamir Times is running an interesting story today that clearly puts me in my place! Here it is: “Hunza River lake would not burst, David Petley’s report is wrong”: Asad Zamin, DC GilgitPosted on May 5, 2010 by Pamir Times PT Report Gilgit, May 4: The report prepared by Dr. David Petley is wrong and the lake formed on Hunza River is not going to burst. Government experts have …
2 May 2010
New photograph of the spillway at Attabad
The Pamir Times today has some images of the spillway and dam at the landslide dam at Attabad, in Hunza, Pakistan. This picture shows the spillway itself: Constructing such a spillway has been a Herculean effort by all involved, who deserve considerable credit. However, the structure is narrower and smaller than is ideal, and the materials at the base in this section at least appear to be the clays. Once …
29 April 2010
Latest update on the Attabad landslide in Hunza
The lake level at the Attabad landslide continues to rise at about 55 cm per day, reflecting the increased level of inflow from snowmelt. NDMA and Focus now conduct joint surveys of the freeboard and have agreed a broadly common figure – currently about 23 m. At current rates this continues to indicate an overtopping date of early June (full details on the monitoring site): Seepage remains a concern, although …
6 April 2010
New images of the Attabad landslide
The Pamir Times has today run a pictorial article on the state of the Attabad landslide (NB see my new site for the latest monitoring data for the landslide). A few of the images are worth reproducing here. First, the third in the sequence of images showing the water level rise. The first was taken by me in late February, the second (on the upper row on the right) is …
2 April 2010
Video of the main seepage point at the Attabad landslide dam
(corrected 3rd April) As I noted yesterday, a new (third) seepage point has appeared on the downstream face of the Attabad landslide dam. A video has been posted on Youtube of the first seepage point. It is worth a view: Note that water now appears to be flowing into this seepage point under pressure, which is a worry. The volume of water at this seepage point is the largest of …
25 March 2010
Update of the Attabad water level and seepage situation
I have this morning updated the post on the Attabad water level and seepage situation. The post is here. Seepage appears to have now stabilised at about 0.4 cubic metres per second, whilst the water level is rising at about 35 cm per day. Meanwhile, the Pamir Times has published this image of the seepage:
22 March 2010
Attabad landslide: latest update on the lake level, seepage rate and spillway height
The latest data on the Attabad landslide is available here. I have added a graph of reported seepage rate against time.
20 March 2010
The water level and seepage at the Attabad landslide – graphs of the current situation
Latest update: 25th March 2010 08:00 GMT I thought it would be useful to post a graph of the current state of play with the water and spillway levels, as I understand it. The water level is from the NDMA daily(ish) updates; the spillway height comes from the freeboard measurement from FOCUS. Needless to say I have no way to validate this data. Graph as of 23rd March 2010 (the …
19 February 2010
A landslide dam in Haiti caused by the earthquake
Thanks to Lynn Highland for the heads-up on this one. The French language website cyberpresse.ca has an article describing a valley blocking landslide triggered by the Haiti earthquake. The translation says: “The dam is large and there are still several tens of metres before the water passes over it. The problem is that it has hardly rained since the earthquake of January 12. When the rainy season triggers, a few …
Dave Petley is the Vice-Chancellor of the University of Hull in the United Kingdom. His blog provides commentary and analysis of landslide events occurring worldwide, including the landslides themselves, latest research, and conferences and meetings.
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